Open source project to develop geopolymer cast stone construction

First Images From Great Pyramid’s Chamber of Secrets

First Images From Great Pyramid’s Chamber of Secrets show hidden hieroglyphs

Note: The main subject of the following article is on hidden hieroglyphs deep inside the Great Pyramid. But Professor Joseph Davidovits of the Geopolymer Institute is more interested in the inverted U-shaped block. It’s almost certainly made of man-made cast stone (cast geopolymer).

From the New Scientist:
“THEY might be ancient graffiti tags left by a worker or symbols of religious significance. A robot has sent back the first images of markings on the wall of a tiny chamber in the Great Pyramid of Giza in Egypt that have not been seen for 4500 years. It has also helped settle the controversy about the only metal known to exist in the pyramid, and shows a “door” that could lead to another hidden chamber.

The pyramid is thought to have been built as a tomb for the pharaoh Khufu, and is the last of the seven wonders of the ancient world still standing. It contains three main chambers: the Queen’s Chamber, the Grand Gallery and the King’s Chamber, which has two air shafts connecting it with the outside world. Strangely, though, there are two tunnels, about 20 centimetres by 20 centimetres, that extend from the north and south walls of the Queen’s Chamber and stop at stone doors before they reach the outside of the pyramid (see diagram).

The function of these tunnels and doors is unknown, but some believe that one or both could lead to a secret chamber. Zahi Hawass, Egypt’s Minister of State for Antiquities Affairs, describes the doors as the last great mystery of the pyramid.”